Selected BP Variables do not refresh details properly

UE - Gameplay - Blueprint - Mar 11, 2015

When selecting variables within a blueprint using the arrow keys, it doesn't refresh the Details properly. You can see this by clicking on each of the variables, to see what the difference between t ...

Camera Generates error after saving with Control + S

Tools - Jan 15, 2016

Camera Generates error after saving with Control + S when user left or right clicks afterwards. Regression: Could not reproduce in UE 4.10 ...

Find Sessions Consistently Returning Results Length of 0

UE - Networking - Feb 24, 2017

It appears that as of 4.15, there is an issue with creating/joining sessions. The attached test project worked fine previously in 4.14, but now is unable to join sessions. The user has stated: Th ...

Crash when using 'DumpLightmapSizeOnDisk' Console Command

UE - Graphics Features - Mar 21, 2017

A crash occurs when using the 'DumpLightMapSizeOnDisk' in the Console Command. ...

World Position Offset causing Cracks in Meshes on certain iOS Devices

UE - Platform - Mobile - May 24, 2017

When using World Position Offset and pushing verts of a mesh, cracks appear on the surface using WPO when deployed to an certain iOS devices. I used the Mobile Previewer to compare results to how t ...

Linux: async loading code crashes when memory pooling is enabled

UE - Platform - Linux - May 9, 2017

The reasons is a bad interaction between FIND_MEMORY_STOMPS code in AsyncLoading.cpp and memory pooling. Async loading will set PrecacheBuffer to read/only and will never reset it back, expecting ...

Crash while unhiding streaming level in multiplayer

UE - Networking - Sep 27, 2017

When unhiding a streaming level several times on the client there can be a crash. ...

When the Transform of InstancedStaticMesh is updated, the Random Seed value of PerInstanceRandom is updated.

UE - Graphics Features - Oct 18, 2017

When updating Transform of InstancedStaticMesh by UpdateInstanceTransform, PerInstanceRandom used in Material is updated. With 4.16 does not update the RandomSeed value. ...

The iOS app icons settings are not being used on Mac

UE - Platform - Mobile - Dec 14, 2017

This issue did not occur on Windows at the same CL. This was originally being tracked by [Link Removed] but after initially testing the fix for that JIRA, this particular issue persisted and it was ...

Crash when calling a RPC function with a TSet or TMap parameter on a client

UE - Networking - May 11, 2018

Calling a RPC function with a TSet or TMap parameter on a client causes the editor to crash. Regression?: No This also occurs in 4.18 ...